Wiggler.



I. IowIiNsTEIN.

WIGGLER.

APPLICATION FILED MAY Is. 1918.

Patented Apr. 15,1919.

Iliff r .Ill

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LoUIs LoWENsTEIN, or DETROIT', MICHIGAN.

WIGGLER. j 1,300,428, Specification of Letters Patent. Patented Apr, 15, 191.9,

mann srarss narrar caries.

To all whom z'trmag/ concern v Be it known that I, Louis LOWENSTEIN, a Citizen of the United States of America, residing at Detroit, in the county of Wayne and tat-ate of Michigan, have invented certain new and useful glers, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention rela-tes to wigglers, and has special reference to that type of machinists tool wherein a spring pressed tubular bearing is employed for holding a needle, indicator or wabbler normally stationary. VIn this type of tool, as heretofore designed, it was impossible to easily increase or decrease the tension of the spring bearing against the tubular bearing, and even after being adjusted, there was a possibility of the adjusting means slipping and releasing the tension on the tubular bearing. Then again, it was possible for the tubular bearing to become displaced relative to the spindle of the tool, and my invention nowaims to obviate these defects by a simple construction that will be hereinafter considered and then claimed.

Referring to the drawing,

Figure 1 is a longitudinal sectional view of a wiggler in accordance with my invention;

Fig. 2 is a plan of the same, and

Fig. 3 is a longitudinal sectional view of the wiggler showing the needle reversed and housed within the spindle of the tool.

The wiggler comprises, a tubular spindle 1 having the inner end thereof interiorly screwthreaded, as at 2, to receive a detachable and adjustable plug 3. n

The outer end of the tubular spindle 1 has an enlarged portion 4 terminating in a reduced eXteriorly screwthreaded end 5 that communicates with the bore of the spindle 1.

Slidable in the reduced end 5 is a tubular bearing 6 and the inner end of said bearing has a peripheral flange or collar 7 adapted to prevent the bearing from being ejected from the end 5 of the spindle.

Interposed between the tubular bearing 6 and the plug 3 is a coiledcompression spring 8, and the tension or expansive force of this spring tends to constantly shift the bearing 6 outwardly, while the tension of the springmay be increased or decreased by adjusting the plug 3 in the end of the spindle 1.

Screwed on the reduced end 5 is a retaining sleeve 9 having a contracted end 10 adapted to engage the inner spherlcal end Improvements in Wig- Application fiied'n'ay 1e, 191s. n serial no. 234,866.

or ball 11 of a needle 12 and y.retain the ball .11 on the outer end of the tubular bearing. 6. By tightening the retaining sleeve 9 the needle 12 may be fixed or with proper adjustment of the retaining sleeve 9, the needle 12 may wabble relative to the spindle. To facilitate adjusting the sleeve 9, said sleeve and the enlarged portion 4L of the spindle l have knurled or roughened portions 13.

The tubular bearing 6 permits of the needle 12, as shown in Fig. 1, being reversed and extended through the tubular bearing into the coiled spring 8 and held by the retaining sleeve 9, as shown in Fig. 3.A

The operation of the wiggler is similar to any mechanics tool of this type, and it is thought that the utility of the structural features of my tool willV be apparent without further description.

What I claiml is:-

1. A wiggler comprising a tubular spindle, a tubular bearing slidable in the outer end thereof, an adjustable plug in the inner end of said spindle, a lcoiled spring interposed between said plug and the inner end of said tubular bearing, a needle having a spherical end bearing against the outer end of said tubular bearing, and a retaining sleeve on the outer end of said spindle retaining the spherical end of said needle in engagement with said tubular bearing. Y

2. The combination with a wiggler spindle, having a needle adjustably mounted therein, of a tubular bearing in said spindle abutting against the inner end of said needle, a spring in said spindle maintainin said bearing against said needle, means at t e inner end of said spindle adapted for regulating the tension of said spring, and means in connection with said bearing adapted to prevent its ejection from the outer end of said spindle.

3. A wiggler comprising a tubular spindle having the outer end thereof reduced, a tubular bearing slidable in the outer reduced end of said spindle and provided with a flange to prevent its ejection from the outer end of said spindle, a retaining sleeve onk the outer end of said spindle, a needle having the inner end thereof held against the outer end of said tubularbearing by said retaining sleeve, and tension means in the greater part of said spindle bearing against the inner end of said tubular bearing adapted to hold said bearing in frictional engagement With the end 'of Said. needle.

l. The combination of a spindle, a needle, a connection between said Spindle and needle Permttin 0f relativemenaient-athesmtween, sai connection allowing the needle to be det-ached from the spindle, means carried by the spindle yieldably holding the needle against moveme. 'o1-relative .to they spindle, and means retaining said yielding Ineens from disengagement from the'spindle when the ,needle is detached.

"5i-1TH@ mbmztwnof a. ,Spindle @needle adj ustabl'y end `reinoyably connected thereinner end of said needle, a spring in the spin- -dle yieldingly 'holding seid bearing in enigesemenwnth. .seidt :needle and means in connection with said bearing adapted to reit against engagement from the spindle zihen the needle is disengaged from the spin- ,n testimony in the pi'esenee lof two witnesses.

LOUIS LQWENSTEIN- 'Wtnessesr i KARL H- BUTLER, 'ANNA'M- DORR- Ggpies Q !tni patent :nay pe: -pbtainegglor `five cents each, by addressing lthe ffcgmmgissionr of Patents,

whereof I affix my signature k 

